uModule Regulator. LTM4625 Datasheet

LTM4625 Regulator. Datasheet pdf. Equivalent


Part LTM4625
Description 5A Step-Down DC/DC uModule Regulator
Feature LTM4625 20VIN, 5A Step-Down DC/DC µModule Regulator FEATURES nn Complete Solution in <1cm2 (Single-.
Manufacture Linear Technology
Datasheet
Download LTM4625 Datasheet


LTM4625 20VIN, 5A Step-Down DC/DC µModule Regulator FEATURE LTM4625 Datasheet
Recommendation Recommendation Datasheet LTM4625 Datasheet




LTM4625
LTM4625
20VIN, 5A Step-Down DC/DC
µModule Regulator
FEATURES
nn Complete Solution in <1cm2 (Single-Sided PCB) or
0.5cm2 (Dual-Sided PCB)
nn Wide Input Voltage Range: 4V to 20V
nn Input Voltage Down to 2.375V with External Bias
nn 0.6V to 5.5V Output Voltage
nn 5A DC Output Current
nn ±1.5% Maximum Total DC Output Voltage Error
Over Line, Load and Temperature
nn Current Mode Control, Fast Transient Response
nn External Frequency Synchronization
nn Multiphase Parallel Current Sharing with
Multiple LTM4625s
nn Output Voltage Tracking
nn Selectable Discontinuous Mode
nn Power Good Indicator
nn Overvoltage, Overcurrent and Overtemperature
Protection
nn 6.25mm × 6.25mm × 5.01mm BGA Package
APPLICATIONS
nn Telecom, Datacom, Networking and
Industrial Equipment
nn Medical Diagnostic Equipment
nn Data Storage Rack Units and Cards
nn Test and Debug Systems
DESCRIPTION
The LTM®4625 is a complete 5A step-down switching
mode µModule (micromodule) regulator in a tiny 6.25mm
× 6.25mm × 5.01mm BGA package. Included in the pack-
age are the switching controller, power FETs, inductor and
support components.Operating over an input voltage range
of 4V to 20V or 2.375V to 20V with an external bias supply,
the LTM4625 supports an output voltage range of 0.6V to
5.5V, set by a single external resistor. Its high efficiency
design delivers up to 5A continuous output current. Only
bulk input and output capacitors are needed.
The LTM4625 supports selectable discontinuous mode
operation and output voltage tracking for supply rail se-
quencing. Its high switching frequency and current mode
control enable a very fast transient response to line and
load changes without sacrificing stability.
Fault protection features include overvoltage, overcurrent
and overtemperature protection.
The LTM4625 is available with SnPb or RoHS compliant
terminal finish.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
5A, 1.5V Output DC/DC µModule® Step-Down Regulator
VIN
4V TO 20V
10µF
0.1µF
CLKIN PHMODE CLKOUT
VIN VOUT
SVIN
RUN LTM4625
INTVCC
PGOOD
MODE
COMP
TRACK/SS
FB
FREQ
GND SGND
VOUT
1.5V
47µF 5A
40.2k
4625 TA01a
1.5V Output Efficiency vs Load Current
95
90
85
80
75
70
65 VIN = 5V
VIN = 12V
60
012345
LOAD CURRENT (A)
4625 TA01b
Document Feedback
For more information www.analog.com
Rev D
1



LTM4625
LTM4625
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, SVIN..................................................... –0.3V to 22V
RUN............................................................ –0.3V to 22V
PGOOD, MODE, TRACK/SS, FREQ, PHMODE,
CLKIN..................................................... –0.3V to INTVCC
Internal Operating Temperature Range
(Notes 2, 5)............................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Peak Solder Reflow Body Temperature.................. 245°C
PIN CONFIGURATION
(See Pin Functions, Pin Configuration Table)
TOP VIEW
CLKOUT
CLKIN
SVIN
SGND 5
FREQ 4
RUN
PHMODE 3
TRACK/SS
FB
2
COMP 1
VIN
MODE
INTVCC
GND
PGOOD
VOUT
ABCDE
BGA PACKAGE
25-LEAD (6.25mm × 6.25mm × 5.01mm)
TJMAX = 125°C, θJCtop = 17°C/W, θJCbottom = 11°C/W,
θJB + θBA = 22°C/W, θJA = 22°C/W,
θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
θ VALUES DETERMINED PER JESD51-12, WEIGHT = 0.5g
ORDER INFORMATION
PART NUMBER
PAD OR BALL FINISH
PART MARKING*
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL
RATING
TEMPERATURE RANGE
(Note 2)
LTM4625EY#PBF
SAC305 (RoHS)
LTM4625Y
e1
BGA
3 –40°C to 125°C
LTM4625IY#PBF
SAC305 (RoHS)
LTM4625Y
e1
BGA
3 –40°C to 125°C
LTM4625IY
SnPb (63/37)
LTM4625Y
e0
BGA
3 –40°C to 125°C
• Consult Marketing for parts specified with wider operating temperature
ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609.
Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures
LGA and BGA Package and Tray Drawings
E LECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal
operating temperature
the front page.
range
(Note
2),
otherwise
specifications
are
at
TA
=
25°C.
VIN
=
SVIN
=
12V
per
the
typical
application
shown
on
SYMBOL
PARAMETER
Switching Regulator Section: per Channel
VIN
VOUT
VOUT(DC)
Input DC Voltage
Output Voltage Range
Output Voltage, Total
Variation with Line and Load
VRUN
IQ(SVIN)
RUN Pin On Threshold
Input Supply Bias Current
IS(VIN)
Input Supply Current
CONDITIONS
SVIN = VIN
CIN = 22µF, COUT = 100µF Ceramic, RFB = 40.2k,
MODE =
–40°C
tIoNT1V2C5C°,CIOUT
=
0A
to
5A
(Note
3)
VRUN Rising
VIN = 12V, VOUT = 1.5V, MODE = INTVCC
SVhINu=td1o2wVn,,
VROUUNT
=
=
1.5V, MODE
0, VIN = 12V
=
GND
VIN = 12V, VOUT = 1.5V, IOUT = 5A
MIN TYP MAX UNITS
l4
l 0.6
20 V
5.5 V
l 1.477 1.50 1.523
1.1 1.2 1.3
6
2
11
0.75
V
V
mA
mA
µA
A
Rev D
2 For more information www.analog.com







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